Royal Canin Veterinary Diet Adult Hydrolyzed Protein Dry Cat Food

By Royal Canin Veterinary Diet
Rated 4.6252 out of 5 stars
Veterinary Diet Item
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Royal Canin Veterinary Diet Adult Hydrolyzed Protein Dry Cat Food, 7.7-lb bag slide 1 of 9
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Royal Canin Veterinary Diet Adult Hydrolyzed Protein Dry Cat Food, 7.7-lb bag slide 1 of 9

$62.99Chewy Price
$59.84Autoship Price
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Frequently Bought Together

This Item - Royal Canin Veterinary Diet Adult Hydrolyzed Protein Dry Cat Food, 7.7-lb bag
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About This Item

  • A veterinary-exclusive dry cat food made with hydrolyzed protein for adult cats with food sensitivities.
  • Helps reduce skin and GI reactions that may be a result of sensitivities to common proteins found in pet foods.
  • Helps minimize risk of reaction with proteins that are broken down to a size that’s less likely to be recognized by the immune system.
  • Reinforces the skin barrier with essential nutrients to support healthy skin in cats with skin sensitivity and irritation.
  • Helps support healthy digestion with an exclusive blend of fibers and prebiotics.
Play Video: Learn More About Royal Canin Veterinary Diet From Our Team of Experts
Learn More About Royal Canin Veterinary Diet From Our Team of Experts

About Royal Canin Dermatology For Cats

Worried About Your Cat’s Skin Health?

Skin health concerns are common, and issues can appear anywhere on your cat’s body. Your veterinarian is the expert on your cat’s health, so you should always consult with this trusted advisor to find the best solutions for your pet. This specialized expertise is why Royal Canin works closely with veterinarians to develop formulas that support skin health.

Common Causes of Skin Health Concerns

Environmental Sensitivities

Pollen, plants and dust are environmental factors that can trigger an immune response in some cats.

Food Sensitivities

Your veterinarian may recommend a diet elimination trial to help determine if your pet has a sensitivity to certain proteins in his current diet.


Your cat can pick up external parasites such as mites, fleas, ticks and lice from contaminated sources, both indoors and out.


Kittens, older cats, and cats that have recently been ill may be more susceptible to bacterial infections that can lead to skin health issues.

How Can Nutrition Help?

Your veterinarian may recommend a Royal Canin Dermatology formula for your cat. These special formulations can:

Aid digestive health by regulating movement through the GI tract and supporting balanced digestive flora

Support the skin’s natural protective barrier

Aid cellular health with a complex blend of antioxidants.

Promote healthy skin and coat by providing long chain omega-3 fatty acids in the diet

Find The Perfect Balance

With a dry and wet feeding routine, dry food supports positive oral health while wet food supports healthy hydration.


Keep your cat's feeding on schedule.  Set your order for Autoship to make sure you always have their veterinarian-recommended nutrition on hand.

About Royal Canin

What sets Royal Canin apart is their close collaboration with veterinarians. Through these professional partnerships, they strive to learn everything they can about pet health, including how different formulas perform for different breeds, sizes, lifestyles and therapeutic conditions. Ongoing research and development allows Royal Canin to keep providing the precise nutrition dogs need for a range of medical conditions.

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Top IngredientsBrewers Rice, Hydrolyzed Soy Protein, Chicken Fat...Chicken By-Product Meal, Brewers Rice, Corn...Peas, Rabbit Meal, Pea Protein...Brewers Rice, Chicken By-Product Meal, Corn...Chicken By-Product Meal, Brewers Rice, Corn...
Special DietLimited Ingredient Diet, Pea-Free, Veterinary Diet...Pea-Free, Veterinary Diet, With GrainLimited Ingredient Diet, Veterinary DietPea-Free, Veterinary Diet, Sensitive Digestion, With GrainPea-Free, Veterinary Diet, With Grain
Food FlavorChicken, PoultryChicken, PoultryRabbit, MeatChicken, PoultryChicken, Poultry
Health FeatureSkin & Coat Health, Digestive HealthUrinary Tract HealthSkin & Coat Health, Digestive HealthDigestive HealthUrinary Tract Health, Weight Management
Food FormDry FoodDry FoodDry FoodDry FoodDry Food

Questions & Answers

32 Customer Questions

When will it be in stock again?

Does this come in wet food?
Answer by ChewyJan 01, 2020
At this time, the manufacturer does not make a wet food version of this formula.

Dies this product cause cat to drink a lot of water and gain weight. My cat is drinking a lot and gained weight.
Answer by ChewyJun 19, 2020
Royal Canin wouldn’t expect this formula to cause increased thirst. It is a bit higher in calories and fat so weight gain may be possible if fed in larger amounts.

Is this for kidney diseSe of urinRy tract disease?
Answer by ChewyMar 12, 2021
This formula is for adult cats with food sensitivities. This diet is formulated with hydrolyzed soy proteins, composed of low molecular weight peptides, so they can be absorbed in the digestive tract with a reduced risk of triggering an immune reaction. Optimal amounts of B vitamins and amino acids reinforce your cat’s skin barrier. Omega-3 fatty acids EPA and DHA help promote healthy skin and coat. An exclusive blend of fibers helps support healthy digestion in cats prone to digestive upsets, including diarrhea.

ReviewsWrite a Review

Rated 4.6252 out of 5 stars
731 Reviews
Would recommend to a friend

731 Customer Reviews

Rated 5 out of 5 stars
By TuxedoCatMom on Jun 22, 2022

Good for Fussy Tummy

Our cat was diagnosed with IBD about a year ago and hydrolized protein food was recommended. She has been doing fine on Ultamino, but it is often out of stock. Last time I couldn’t get Ultamino we tried Hill’s Z/D which was OK - she liked the flavor and her poops were a bit soft but returned to solid within a few days. But then she was vomiting water/saliva (a symptom of IBD flare-up) and we switched back to Ultamino as soon as it was back in stock. This time Ultamino is out of stock for a several weeks and we are using Royal Canin Hydrolized Protein kibble which she likes the taste so much that she picks out the new food when we give it to her mixed with the old food during the transition. Her poops were soft at first, resolved back to solid after about 4 days. She had one barfing episode (water/saliva) and has been fine since. We are very pleased with the new food and plan to keep going with this one. Smaller size kibbles are nice, too, I think she prefers this.

Rated 5 out of 5 stars
By SlaveOfHermes on May 26, 2022

Hermes approves! He even runs to his bowl sometimes!

He likes it! He eats it and when his bowl is empty and I go to fill his bowl, he even excited comes and waits for me! He was used to eating a range of wet and dry food so it's a little sad he can only eat one food now. BUT at least I found a diet he likes! Hermes likely has IBD (or lymphoma) and was recommended a hydrolyzed protein diet or a novel protein diet. This is the 3rd diet I've tried him on after finding out about his condition. The first one I tried him on was Pro Plan HA. Hermes wasn't a fan and started eating less when I mixed it with his old food to transition him. This worried me because he's still not an adult cat so I gave up on that food. I then tried him on Royal Canin PR. He liked eating both the wet and dry foods but it made him very itchy and he seemed miserable so I ended up transitioning him to this one. It's still too early to tell if this diet is helping his IBD but there appear to have been some small improvements. Sometimes I leave a small amount of kibble in a secondary location for him as a "snack" and he gets extra excited about it. Hopefully it helps him.

Rated 5 out of 5 stars
By mshubes on May 26, 2022

Only hydrolized food he will eat!

The vet put our orange boy on a hydrolized-only diet for a very long while (some major health issues going on). We tried all the hydrolized foods—every single one of them—and this is the ONLY one he likes! And he actually LIKES it, even preferring it over the other cats' dry food. Wish they made a canned version, as well! This cat absolutely LOVES his wet food, but he will only kinda lick at the Hill's z/d canned and will not even attempt to eat the Blue Buffalo. If Royal Canin comes out with a hydrolized canned food, we will definitely try it!

Rated 5 out of 5 stars
By Chickadee on May 31, 2022

Hydrolyzed Protein Cat Food

My cat developed persistent skin issues so my vet recommended this cat food. So far, so good! My cat likes the food. He's been on it for a little over a couple weeks and he has not vomited once, which is sort of a minor miracle. Hoping his skin issues clear up as well.

Rated 5 out of 5 stars
By catladybug on Mar 29, 2022

Toothless Cat Approved

I have a petite 7yr old tabby who is missing a majority of her teeth now, after needing many extractions over time. She can eat this kibble just fine! She is able to swallow them whole, and the triangular/pyramid shape allows her to pick them up easier. She was prescribed this food for a suspected intra-hepatic portosystemic shunt which caused her to not absorb as many nutrients from regular food, resulting in her weight loss till she was just under 7lbs. (Her usual weight was only 8.2lb) Since starting this food she went back up to 8lbs within a month and has been holding steady for nearly a year now! I have 2 other cats which don’t have any health problems and I feed this to all of them since it’s hard to manage separate diets and they’re all doing well and enjoy this food. No excessive weight gain from them or anything negative.

Rated 5 out of 5 stars
By Debbi on May 4, 2022

So far , so good !

Our Vet put our 4 YO persian/himmie who has vomited almost daily for his entire life on this food. He was previously on another RX diet but that didn't give the desired results - NO vomit. This one is working so far, no finding his stomach contents since 4/6/22! We're calling this one a win for everyone!!!

Rated 5 out of 5 stars
By Deej on May 22, 2022

It's The Good Stuff

This was the only hydrolyzed cat food my guy would eat. It was like a magic potion for him and after a year of extreme diarrheal issues, he finally has normal stool! He won't eat the wet version of this, but loves the dry.

Rated 5 out of 5 stars
By Heather on May 17, 2022

Worked wonders for my cats

My cats had been having intestinal troubles and my vet sent an RX for this food. All their issues have disappeared and my cats are feeling so much better! Love that I can have it delivered vs trying to track it down!

Rated 3 out of 5 stars
By DeniseK on Apr 1, 2022

Doesn’t seem to satisfy her hunger

Tried this for my cat with food allergies, and she likes the food, but she is always starving hungry. We called Royal Canin to verify the amount she should have on a daily basis and she eats that, but is always asking for more. It does not make her feel satisfied at all. It may be more filling for other cats, but we need to change her food, again, to something that is more satisfying.

Rated 5 out of 5 stars
By Bill on May 21, 2022

This cat food is the best

We have looked and tried so many different brands and have found that this best fits our cats needs. Cannot beat the price for it anywhere for the size we get through Chewy!